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Finding the Fourth Proportional to 2,658.58, 3,668.78 and 1,479.62

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Solution

The fourth proportional to 2,658.58, 3,668.78 and 1,479.62 is: 2,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.58 : 3,668.78 = 1,479.62 : x
  2. Step 2: Convert to fraction form
    2,658.58/3,668.78 = 1,479.62/x
  3. Step 3: Cross multiply
    2,658.58x = 3,668.78 × 1,479.62
  4. Step 4: Simplify right side
    2,658.58x = 5,428,413.13
  5. Step 5: Solve for x
    x = 5,428,413.13/2,658.58
  6. Step 6: Final answer
    x = 2,041.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.